Trolley-wheel.



A. C. SLOAN.

TROLLEY WHEEL.

APPLIOATION I'ILED MAE. 6, 1911.

1,006,303. Patented Oct. 17, 1911.

lnventor Attorneys ALBERT C. SLOAN, OF SALAMANCA, NEW YORK.

TROLLEY-WHEE-L.

Specification of Letters Patent.

Application filed March 6, 1911.

Patentefl Oct. 17, 1911.

Serial No. 612,598.`

To allwhom ii may concern:

Be it known that I, ALBERT C. SLOAN, a citizen of the United States,residing at Salamanca, in the county of Cattaraugus and State of NewYork, have invented a new and useful Trolley-VVheel, of which thefollowing is a specification.

This invention relates to pulleys, and j more especially to that kindwhich are coni structed and adapted and intended to 'lubricate the axleupon which they rotate; and

the Object of the same is to produce a trolley wheel having a hollowbody to contain the lubricant, means for introducing the lubri- Q cantthereinto when necessary, and its parts E all made separable so thatthey can be disl associated when it is desired to replace a worn rimwith a new one.

These objects are accomplished by the construction hereinafter describedand claimed, and as shown in the drawings wherein- Figure 1 is an endelevation of this trolley wheel complete. Fig. 2 is a Central verticalsection therethrough. Fig. 3 is a perspective detail of the two parts ofthe sleeve which extends through the axis of this wheel and which isjournaled on the rod or shaft.

In the drawings, the letter S designates as an entirety a sleeve whichis fixed through the center of this trolley wheel and by means of whichit is journaled upon its support, such as a shaft or rocl, the letter Bdesignates the body of this wheel made in two hollow truncated cones,and the letter R designates its rim which is detachably clamped betweenthe inner ends of said body members so that it may be removed when itbecomes worn and replaced with another. These several members aredescribed in full here below.

The body members B are duplicates of each other, and a description ofone will suflice for both. It consists of a thin light shell of metalformed in the shape of a hollow truncated cone 5 with its smaller endturned inward toward the aXis in a hub 7 pierced with a hole 6, and itslarger end preferably formed with an axially projecting fiange 8.Through one member is formed a filling orifice 12 closed by a screw plug13.

The rim R is simply an annulus or band i 20 with its outer facedished'as at 21 so as to receive the trolley wire and its inner faceformed with side grooves 22 to receive the flanges 8. 4

The sleeve S is a tubular member 30 having a series of holes 31throughout its length, a rigid enlarged head 32 at one end, and itsother end threaded as at 33; and on the latter screws a nut 34 which isof about 7 the same size and shape as the head 32, this head beingprovided with a notch 35 ata proper point to permit the head of thescrew plug 13 to pass therein when the said plug lS put in place to holdthe relative parts in 775 fixed position as well as forming a closurewithin the shell. In order to accomplish a close connection of parts theexterior diameter of the sleeve will be such as to fit closely withinthe holes 6 through the hubs 7 of the bodies B, and the length of thesame will be such that when in place it eX- tends throughout the axiallength of the body so that the head 32 engages against one hub 'Z andthe nut 34 can be screwed up against the other hub. The body members 5are thereby forced toward each other so that their axial flanges S arepressed into the grooves 22 in the rim R, and thus the tightening of thenut 34 secures the various parts of this trolley wheel in position.

I have found that the long and heavy usage to which trolley wheels aresubjected, as well as rapid rotation in all kinds of weather, greatlyreduces their life; and as the wear comes principally upon the rim whereit contacts with the trolley wire, this usually wears out first and mustbe replaced from time to time. This construction of trolley wheelpermits its parts to be disassembled at times and a worn rim to bereplaced in a manner which will be clear. Another point of extreme wearis where the wheel rotates about the shaft or rod which eXtends throughit, and this construction of hollow body provides a reservoir for oil,capable of being filled from time to time through the orifice 12, andwhich-because it rotates-is normally driven outward or away from thesleeve and shaft but which* at times when the trolley is idle-willsettle in the lower half of the body and normally pass upward throughwhichever of the holes 31 is at the bottom of the sleeve at that time,thereby directly applying the lubricant to the shaft around which thesleeve is to rotate. This sleeve will of course be of some hard materialto withstand wear, but the rim which needs replacing often may be ofsome cheaper material, and the whole wheel being hollow is light ofweight and cheap to make.

What is claimed as new is 1. A trolley wheel comprising a hollow bodyconsisting of two hollow truncated cones having inwardly projecting hubsaround their smaller ends and aXially proj ecting flanges around theirlarger ends, and one of the truncated cones having a filling orifice; arim having grooves in its side faces to receive said aXial flanges; asleeve consisting of a tubular member having radial holes through it, anenlarged integral head at one end thereof and external threads on itsother end, a nut screwed upon the latter end, said nut and head adaptedto contact with the hubs of the body members; and a screw plugengageable in said filling orifice and adapted to hold the said sleeveand truncated concs in position.

2. A trolley wheel comprising a hollow body consisting of two hollowtruncated cones having hubs at their smaller ends and flanges at theirlarger ends, and one of said truncated cones having a fillng orice whichis scrcw threaded; a rim having grooves in its side faces to receivesaid flanges at the larger ends of the truncated cones; and a sleeveconsisting of a tubular member having radial holes through it and anenlarged integral head at one end thereof, said head having a notchtherein, and eXternal threads on its other end, and a nut screwed uponthe latter end, said nut and head adapted to contact with the hubs ofthe body members; and a screw plug engaged in the said filling orificeand having its head fitting in the notch in the head o`f the tubularmember to secure the parts in position.

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature in the presence of two witnesses.

ALBERT C. SLOAN.

VVitnesses:

VVEsLnY C. BAUTON, CHARLES E. CoNGDoN.

Copes of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents Washington, D. C.

